Apparatus for fire-finishing glassware.



No. 696,500. Patented Apr. l, |902. H. SCHAUB.

APPARATUS FOR FIRE FINISHING GLASSWRE.

'Application filed Oct. 28. IQOL (No Model.)

. Y ,HM/1, 111/ au.

| xfvc EZZ WITNESSES tran 'Sra-mns Ainnrr Prien.

I'IENRT SOI'IAUB, OF MOUNT PLEASANT, PENNSYLVANIA, ASSIGNORiTO BRYCE BROTHERS COMPANY, OF MOUNT PLEASANT, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

APPARATUS FOR FIRE-'FHNISHING GLASSWARE.

SPECIFICATION forming part of Letters Patent No. 696,500, dated April 1, 1902. Application filed October 28. 1901. Serial No. 80,229. (No model.)

.ro all whom,v it 12v/ty concern,.-

Be it known that I, HENRY SCHAUB, of Mount Pleasant, in the county of VVestmore- Vland and State of Pennsylvania, have invented a certain new and useful Improvement in Apparatus for Fire-Finishing Glassware, of which improvement the following is a speci- Iication.

Myinvention relates to apparatus for tirefinishing#7 meltingf or glazing the edges of blown tumblers or other articles of glassware by the application of heat thereto while supported uponasuitable traversing mechanism by which they are successively presented to and withdrawn from a blowpipe-lame or other source of heat. In apparatus of this type in which a furnace is not employed for the generation and evolution of the required heat and in which the heat is exerted upon the glassware by the direct application of a blowpipe-iiame thereto it has been found that Where a hydrocarbon of the character of benzin-gas is employed as a fuel and where the proportions of gas and air under pressure are not. properly and carefully regulated, which will often be the case by reason of negligence or lack of skill on the part of the operator, the edges of the ware are liable to be smoked or blackened to some extent bythe action of impurities, such as sulfur and unconsumed carbon, which are liberated from the iiame and deposited on the ware.

The object of my invention is to provide simple and effective means whereby articles of glassware may be perfectly and rapidly fire-finished by the direct application of iame in the open air without liability to deterioration by impurities in the iialne, as above indicated.V

To this end my invention, generally stated, consists in the combination of a blowpipelame appliance, a traversing mechanism by which articles of glassware are successively presented to and withdrawn from the iiame of said appliance, and a puriiier interposed between said appliance and the ware-traversing mechanism.

The improvement claimed is hereinafter fully sot forth.

In the accompanying drawings, Figure l is a Vertical central section through an apparatus for fire-finishing glassware, illustrating an embodiment of my invention; Fig. 2, an end view, in elevation and on an enlarged scale, of the purifier, detached; and Fig. 3 a vertical longitudinal central section through the saine.'

In the practice of my invention I provide as essentials the following instrumentalities, viz: a suitable blowpipe-iiame appliance A, the same being an appliance of the wellknown type in which the energetic combustion of gaseous fuel is effected by the application of an air blast, a ware -traversing mechanism B ofany suitable known construction adapted to successively present a plurality of articles of glassware to and withdraw them from the blowpipe-flame, and a purifier C, interposed between the blowpipeiiame appliance and the ware traversing mechanism and adapted to conductthe dame to and direct it upon the articles of glassware which are successively presented to it by the ware-traversing mechanism and to extract from the iiame in transit contained impurities which might otherwise impair the quality of the glassware.

In the instance exemplified the blowpipei'larne appliance A is composed of a gas-supply pipe 1, having a suitable contracted nozzle ordischarge-opening, which is surrounded by a miXer-pipe and an air-blast pipe 2, also. having a contracted nozzle or discharge-opening, which is located at a proper distance from that of the gas-supply pipe, the relative volumes of gas and air being controlled by regulati 11g-valves (not shown) in the ordinary manner. The specific form and disposition of the members of the blowpipe-iiame appliance are not an essential of myinvention and may be varied in the discretion cf those skilled in the art.

The ware-traversing mechanism B is in this instance shown as substantially similar to that set forth in the patent of II. O. Schrader, No. 566,412, dated August 25, 1896,-and comprises an upright rotary shaft 4, to which power is applied through a belt-pulley 5 and which supports a drum or carrier having the capacity of movement with the shaft and of remaining stationary at desired intervals, respectively, said drum having journaled on its periphery a plurality of spindles 7, each carrying a support S for an article of glassware, and a friction-Wheel 9, through which the spindle may be rotated by the contact of the wheel 9 with a wheel 10, fixed to the axle of the drum. The Ware-traversing mechanism above described is, however, only one of several constructions which have been long known in the art and employed for the purpose of mechanically transporting in succession a plurality of glass articles to a point at which they are acted upon by the application of heat and of successively withdrawing them from the action of such heat after it has been sufficiently exerted. Among such ware-traversing mechanisms may be mentioned endless-chain carriers, instances ofthe employment in which, in combination with a source of heat in the manner stated, are of public record as early as 1833 and at different dates thereafter. The specific construction of Ware-traversing mechanism employed does not form part of my invention, and any other suitable and preferred form may in the discretion of the constructor be substituted without departure therefrom.

The characteristic feature of the purifier C is a channel or conduit, through which the flame from the bloWpipe-flame appliance A is led to a point proper for its discharge upon an article of glassware supported on the warecarrying mechanism B, the walls of said channel or conduit being composed of refractory material and being of such form as to present one or more deflecting-surfaces by which the flame is diverted to a greater or less extent from a direct and uninterrupted course to its point of discharge upon the ware and is caused to impinge upon the Walls of the channel or conduit in its traverse through the purifier; In the instance herein shown the purifier is composed of a sheet or plate metal case 11, which serves to contain a body or block 12 of lire-clay or other refractory material or composition which is capable of being readily molded or pressed into desired form and Whichis preferably of a porous nature. A channel or conduit 13 is formed in and extends throughout the refractory body 12, the entrance end of said channel being made sufficiently large to receive the discharge ends of Lhegas-supply pipe 1 and mixer-pipe 3 and the air-blast pipe 2 and to present no obstruction between them, and the Walls of the channel being thereafter alternately downwardly and upwardly inclined or curved to its discharge end, which is located at a proper distance from the line of traverse of the ware-supports 8 of the Ware-traversing mechanism. The inclined portions of the walls of the channel 13 form deflecting-surfaces against which the flame impinges in its traverse through the channel. The body of refractory material 12 of the purifier becomes highly heated by the flame, and impurities contained in the latter, such as free carbon and sulfur, are eliminated and consumed byits impingement against the hot deHecting-surfaces, the iamc discharged from the purifier upon the glassware being thereby exempted from tendency to blacken the ware. A purifier eighteen inches long by six inches Wide and having a flame-channel one inch deep and three and one-half inches Wide has been found to operate satisfactorily in regular practical service; but the specific form and dimensions of the purifier may be varied from those indicated without departure from the spirit of my invention. Thus, for example, the walls of the dame-channel might be formed of plates of fire-clay or tile, inclined so as to present deflecting-surfaces to the flame. Other variations of structural detail will readily suggest themselves to those skilled in the art.

The employment of an apparatus embodying my invention attains the substantial advantage'of dispensing with the complicated and expensive furnace structures and mechanism for moving glass articlesinto or through them which have heretofore been used and of enabling glassware to be properly fire-finished by the application of a blowpipe-iiame in the open air with the expedition which is afforded by mechanically transporting the ware to and from the melting orglazing flame.

I claim as my invention'and desire to secure by Letters Patent- 1. In an apparatus for fire-.finishing glassware, the combination of a bloWpipe-lame appliance, a traversing mechanism by which articles of glassware are successively presented to and Withdrawn from the ame of said appliance,andaIlame-purifierinterposed between said appliance and the ware-traversing mechanism.

2. In an apparatus for fire-finishing glass- Ware, the combination of a gas-supply pipe, an air-blast pipe, a flame-purifier consisting of a body of refractory material having a tortuous channel or conduit With which the gas and air pipes are connected, a plurality of inclined deliecting-surfaces in said channel, and a Ware-traversing mechanism located adjacent to the discharge end of said channel.

3. A flame-purifier for fire-finishing apparatus composed of an inclosing case or shell and a body of refractory material supported therein and having formed within it a longitudinal channel or conduit provided with deflecting-surfaces which are presented by alternately oppositely inclined or curved portions of its walls.

HENRY SUHAUB.

Witnesses:

J. MCD. BRYCE, W. A. KALP.

IOO, 

